package com.atguigu.lease.web.admin.service.impl;

import com.atguigu.lease.common.constants.RedisConstant;
import com.atguigu.lease.common.result.ResultCodeEnum;
import com.atguigu.lease.common.springmvc.LeaseException;
import com.atguigu.lease.common.utils.JwtUtil;
import com.atguigu.lease.model.entity.SystemUser;
import com.atguigu.lease.model.enums.BaseStatus;
import com.atguigu.lease.web.admin.service.LoginService;
import com.atguigu.lease.web.admin.service.SystemUserService;
import com.atguigu.lease.web.admin.vo.login.CaptchaVo;
import com.atguigu.lease.web.admin.vo.login.LoginVo;
import com.atguigu.lease.web.admin.vo.system.user.SystemUserInfoVo;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.wf.captcha.SpecCaptcha;
import io.jsonwebtoken.Claims;
import org.apache.commons.codec.digest.DigestUtils;
import org.apache.commons.lang3.ObjectUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.RedisTemplate;
import org.springframework.stereotype.Service;

import java.util.UUID;
import java.util.concurrent.TimeUnit;

@Service
public class LoginServiceImpl implements LoginService {
    @Autowired
    private RedisTemplate<String,Object> redisTemplate;
    @Autowired
    private SystemUserService systemUserService;
    @Override
    public CaptchaVo sendcode() {
        SpecCaptcha specCaptcha = new SpecCaptcha(130, 48, 4);
        specCaptcha.setCharType(SpecCaptcha.TYPE_DEFAULT);
        String base64 = specCaptcha.toBase64();
        String text = specCaptcha.text();
        String uuidKey= RedisConstant.ADMIN_LOGIN_PREFIX+UUID.randomUUID().toString().replace("-","");
        redisTemplate.opsForValue().set(uuidKey,text,RedisConstant.ADMIN_LOGIN_CAPTCHA_TTL_SEC,TimeUnit.SECONDS);
        CaptchaVo captchaVo = new CaptchaVo(base64, uuidKey);
        return captchaVo;
    }

    @Override
    public String login(LoginVo loginVo) {
        //校验验证码是否过期
        String redisCode=(String) redisTemplate.opsForValue()
                .get(loginVo.getCaptchaKey());
        if (ObjectUtils.isEmpty(redisCode)) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_EXPIRED);
        }
        //校验验证码是否正确
        if (!redisCode.equalsIgnoreCase(loginVo.getCaptchaCode())) {
            throw new LeaseException(ResultCodeEnum.ADMIN_CAPTCHA_CODE_ERROR);
        }
        LambdaQueryWrapper<SystemUser> wrapper = new LambdaQueryWrapper<>();
        wrapper.eq(SystemUser::getUsername,loginVo.getUsername());
        SystemUser userServiceOne = systemUserService.getOne(wrapper);
        //账号不存在的话
        if (userServiceOne==null) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_NOT_EXIST_ERROR);
        }
        //校验密码和数据库的密码是否正确
        String md5Hex = DigestUtils.md5Hex(loginVo.getPassword());
        if (!userServiceOne.getPassword().equals(md5Hex)) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_ERROR);
        }
        //账号是否可用
        if (userServiceOne.getStatus()== BaseStatus.DISABLE) {
            throw new LeaseException(ResultCodeEnum.ADMIN_ACCOUNT_DISABLED_ERROR);
        }
        String token = JwtUtil.createToken(userServiceOne.getId(), userServiceOne.getUsername());
        return token;
    }

    @Override
    public SystemUserInfoVo customInfo(String accessToken) {
        Claims claims = JwtUtil.parseToken(accessToken);
        Integer userId=(Integer) claims.get("userId");
        SystemUser systemUser = systemUserService.getById(userId);
        SystemUserInfoVo systemUserInfoVo = new SystemUserInfoVo();
        systemUserInfoVo.setName(systemUser.getName());
        systemUserInfoVo.setAvatarUrl(systemUser.getAvatarUrl());
        return systemUserInfoVo;
    }
}
